usb: chipidea: imx: add HSIC support

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To support imx HSIC, there are some special requirement:
- The HSIC pad is 1.2v, it may need to supply from external
- The data/strobe pin needs to be pulled down first, and after
  host mode is initialized, the strobe pin needs to be pulled up
- During the USB suspend/resume, special setting is needed

Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Peter Chen <peter.chen@nxp.com>

...

This commit is contained in:

Peter Chen 2018-10-16 09:17:02 +08:00

parent 014abe34a9

commit 7c8e890941

3 changed files with 270 additions and 19 deletions

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144

drivers/usb/chipidea/ci_hdrc_imx.c

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9

drivers/usb/chipidea/ci_hdrc_imx.h

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140

drivers/usb/chipidea/usbmisc_imx.c

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